How fast can you go with a stock bottom end?

ciara · 10-23-2003, 05:03 AM

I have a 351w in my 84GT. It has stock crank and rods with hyper. pistons. How fast have people gone running a stock bottom end and still had some kind of reliablity?

GhOsT6_9 · 10-25-2003, 02:25 PM

You can probably get away with running 300-400hp with a stock bottom end with some decent reliability. Also depends how you plan on making the power, with an s/c, nitrous or N/A?? I'm not completely familiar with the 351W but does it have forged, cast or hypertec parts??

QuantumMotorsports · 10-25-2003, 10:11 PM

The post said "hyper pistons" meaning hypereutectic, I would say you could probably get 400 hp from a 351W and be reliable naturally aspirated. As far as how fast you can go, it all depends on your car, weight, rear end, tranny, your driving. But if you want, put 400 hp and your cars weight into the mustang analyzer and see what it says.

10-23-2003, 05:03 AM	#1
ciara Registered Member Join Date: Jan 2002 Posts: 100	How fast can you go with a stock bottom end? I have a 351w in my 84GT. It has stock crank and rods with hyper. pistons. How fast have people gone running a stock bottom end and still had some kind of reliablity?

10-25-2003, 02:25 PM	#2
GhOsT6_9 Registered Member Join Date: May 2000 Location: Ontario,Canada Posts: 233	You can probably get away with running 300-400hp with a stock bottom end with some decent reliability. Also depends how you plan on making the power, with an s/c, nitrous or N/A?? I'm not completely familiar with the 351W but does it have forged, cast or hypertec parts?? __________________ 1989 Mustang LX Notch 5.0L, T-5, 1969 351W heads, cut & welded stock plenum, F-303 cam, Mac 1 5/8 full length headers, Cat'd H-pipe, 3.73 gears, Underdrives, SSM lift bars, E-Fan, 3G Alt, Custom Chip, Autometer gauges, Weld Draglite wheels , M/T ET Street Radials Best 1/4: 13.33@101.53MPH

10-25-2003, 10:11 PM	#3
QuantumMotorsports Registered Member Join Date: Jul 2000 Location: Norman, Oklahoma, USA Posts: 597	The post said "hyper pistons" meaning hypereutectic, I would say you could probably get 400 hp from a 351W and be reliable naturally aspirated. As far as how fast you can go, it all depends on your car, weight, rear end, tranny, your driving. But if you want, put 400 hp and your cars weight into the mustang analyzer and see what it says. __________________ Michael Black QuantumMotorsports Norman, OK 1984 LX Hatch 306 w/ TRW forged flat toppers, Comp Cams Magnum 292H, GT40P heads w/ 3 angle valve job, .550 lift springs, Angus Racing Roller Rockers, Weiand Stealth Intake, Holley 4150 650cfm carb, MAC 1 5/8 Long Tubes, Single Chamber Flowmasters, 91' T5 w/ Pro 5.0 shifter, Turbo Coupe 8.8 Rear w/ 3.55 gears, QA1 Motorsports tubular K member, no interior except steering wheel and seat. Coming soon: 6 or 8 point cage, Fuel Cell, Weld Draglites

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